PL133-37 PhaseLink Corp., PL133-37 Datasheet - Page 4

• Manufacturer Part Number: PL133-37
• Description: Low-power, 1.62v To 3.63v, 1mhz To 150mhz, 1 3 Fanout Buffer Ic
• Manufacturer: PhaseLink Corp.

NOISE CHARACTERISTICS
When a buffer is used to pass a signal then the buffer will add a little bit of its own noise. The
phase noise on the output of the buffer will be a little bit more than the phase noise in the input
signal. To quantify the noise addition in the buffer we compare the Phase Jitter numbers from
the input and the output. The difference is called "Additive Phase Jitter". The formula for the
Additive Phase Jitter is as follows:
2880 Zanker Rd., San Jose, California 95134
Additive Phase Jitter
Additive Phase Jitter = (Output Phase Jitter) - (Input Phase Jitter)
-100
-110
-120
-130
-140
-150
-160
-170
PARAMETER
Low-Power, 1.62V to 3.63V, 1MHz to 150MHz, 1:3 Fanout Buffer IC
-70
-80
-90
10
VDD=3.3V, CLK=26MHz, Integration Range 12KHz to 5MHz: 0.072ps typical.
100
SYMBOL
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1000
PL133-37 Additive Phase Jitter:
V
Offset=12KHz ~ 5MHz
V
Offset=12KHz ~ 20MHz
CONDITIONS
DD
DD
REF Input
=3.3V, Frequency=26MHz
=3.3V, Frequency=100MHz
Offset Frequency (Hz)
2
10000
PL133-37 Output
100000
2
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MIN
1000000
PL133-37
TYP
70
80
MAX
10000000
UNIT
fs
fs